Wooden i-beam

Claim 1

A STRUCTURAL TRUSS COMPRISING AN ELONGATED WEB MEMBER OF SHEET PLYWOOD, SAID WEB MEMBER COMPRISING A PLURALITY OF SHEETS WITH ABUTTING EDGES AND LYING IN THE SAME PLANE, EACH SHEET HAVING ALTERNATE LAYERS IN MUTUALLY PERPENDICULAR ARRANGEMENT, THE LAYERS OF SAID SHEETS HAVING THEIR GRAINS EXTENDING DIAGONALLY OF THE PRINCIPAL DIMENSION OF THE WEB MEMBER, FLANGE MEMBERS EXTENDING AT RIGHT ANGLES TO THE WEB MEMBER FROM ITS LATERAL EDGES, EACH OF SAID FLANGE MEMBERS CONSISTING OF A PLURALITY OF ELONGATED STRUCTURAL WOOD MEMBERS OF UNIFORM CROSS SECTION ADHESIVELY BONDED TOGETHER AND TO THE WEB IN STACKED RELATION, AND A PLURALITY OF RELATIVELY STIFF STRUCTURAL TRUSS TIMBERS OF UNIFORM CROSS SECTION EACH EXTENDING DIAGONALLY OF THE PRINCIPAL DIMENSION OF THE WEB MEMBER SUBSTANTIALLY ITS FULL WIDTH BETWEEN THE FLANGE MEMBERS AND OVERLYING THE ABUTTING EDGES OF THE SHEETS FORMING THE WEB, SAID TRUSS MEMBERS BEING BONDED TO THE WEB MEMBER THROUGHOUT THE MUTUALLY CONTACTING SURFACES THEREOF AND VARYING IN MUTUAL SPACING WITH DISTANCE FROM THE END OF THE WEB TO PROVIDE STIFFNESS AGAINST LATERAL BENDING OF THE WEB AND THE BEAM.